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Finding the Fourth Proportional to 19,612.96, 27,066 and 10,660.48

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Solution

The fourth proportional to 19,612.96, 27,066 and 10,660.48 is: 14,711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,612.96 : 27,066 = 10,660.48 : x
  2. Step 2: Convert to fraction form
    19,612.96/27,066 = 10,660.48/x
  3. Step 3: Cross multiply
    19,612.96x = 27,066 × 10,660.48
  4. Step 4: Simplify right side
    19,612.96x = 288,536,551.68
  5. Step 5: Solve for x
    x = 288,536,551.68/19,612.96
  6. Step 6: Final answer
    x = 14,711.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.